Fix Python3 errors in Sublime Text 3
ST3: Copy <Packages>/lib/* to User/InputHelper/bin

Since Sublime Text 3 would no longer extract package archive into a
folder, we have to extract the required binary files ourselves. This
patch will make this happens everytime the plugin is loaded, usually
when ST starts up.
Merge pull request #4 from ladios/python3

Sublime Text 3 support. Thanks to ladios.